Device for Spreading Adhesive

ABSTRACT

The invention relates to a device ( 1 ), for spreading adhesive for floor coverings, comprising a quadrilateral housing ( 2 ) open on at least the lower face thereof, said housing ( 2 ) being provided with a handle ( 4 ), arranged on a fourth vertical wall and a toothed lower edge ( 5 ), arranged on a first vertical wall, opposite that provided with said handle ( 4 ).

The present invention relates to a device for spreading adhesive forfloor coverings, comprising a quadrangular housing open at least on itslower face, said housing comprising at least a first, a second and athird vertical wall, said second and third vertical walls being oppositeone another and each of said vertical walls comprising a lower edge andan upper edge, said housing comprising at least one handle and at leastsaid first vertical wall comprising teeth on the lower edge.

Such a device is for example known from the German utility model G 03 09329.2 which discloses a casing provided with a handle allowing towing ofthe casing, which casing has a fourth wall provided with teeth making itpossible to spread strips of adhesive directly on the floor and formgrooves in it. It is in fact well known that persons skilled in the art,when they wish to spread adhesive, use a toothed spatula that is alsoreferred to as an adhesive comb in order to form grooves in the layer ofadhesive and allow better adhesion of the floor covering to be applied.This device comprises interchangeable one-piece casing modules, to befixed to the handle, with a width lying in the range 30 cm to 95 cm.

Unfortunately, such a device is cumbersome to use and transport; in factit forces persons skilled in the art, each time they wish to lay anothersize of tile, to change casing module and consequently empty it, cleanit and replace it with another. It is well known that spreading 90cm-wide strips of adhesive in order to lay for example 10 cm tiles isentirely impractical and leads to a poor quality of work since personsskilled in the art must go above 80 cm of adhesive in order to lay thefirst, and then lack accuracy and freedom of movement. Moreover, the fewmodules provided do not allow the spreading of strips of adhesive of anydesired width to be provided. This is because it is only possible tospread on the floor strips of adhesive of a width equal to the width ofthe various existing modules. Persons skilled in the art, when they movearound on the worksite, must make provision to provide themselves withall the casings, which can present a considerable load and especially ifthe tiling to be laid is for example a mosaic tiling requiring tiles ofvarious sizes. Furthermore, the floors to be covered are not necessarilyspacious surfaces and it is often a nuisance to have to interchange thecasing when in the middle of a surface on the worksite where part iscovered with freshly laid covering, piles of tools, a stock of coveringto be laid, a pre-pasted surface, etc.

Moreover, in this kind of device, if a strip of adhesive is not uniformand/or is poorly pasted, it will be necessary for persons skilled in theart to scrape off all the adhesive already laid by hand, put it back inthe casing and start their pasting again.

The aim of the present invention is to overcome these drawbacks byallowing the user to work more accurately, more quickly and more easilywhilst requiring less work space and by spreading strips of adhesivewhose width is adjustable very simply, without requiring dismantling,emptying, cleaning, transportation and handling of excessively heavy andcumbersome objects.

To this end, the present invention provides a device as stated at thebeginning, characterised in that said vertical walls have an adjustablelength provided in order to be adapted to a tile dimension.

This is because the device according to the invention makes it possibleto spread strips of adhesive of variable width. The user can for exampleplace a tile inside said device and use it to set the width of the stripof adhesive by closing up or opening out the vertical walls until theycome into contact with the sides of the tile. Moreover, if personsskilled in the art have to change tile size for the pattern to be laid,all that is necessary is to close up or open out the vertical wallsagain. This adjustment of the width of the device (length of the firstvertical wall) requires neither emptying of the adhesive contained insaid device, nor manipulation of heavy and cumbersome casings, normanipulation of a handle, which is also cumbersome. All that is neededis to bring the lateral walls closer to one another or move them furtheraway from one another by sliding. Thus, the user can deposit a largeamount of adhesive inside the housing without thinking that he will haveto empty it all during adhesive spreading. Moreover, the presence ofsolely three walls allows simplicity of use. This is because, if personsskilled in the art carry out a non-uniform pasting because of somedisruption in their work, instead of having to scrape off all theadhesive already deposited by means of a trowel and put it all back inthe casing, they just need to lift up the device according to theinvention, leaving all its adhesive where it is, carry it away andreplace it at the location of the pasting non-uniformity, withoutscraping off or removing the adhesive already laid. Then, they pull thedevice according to the invention until they reach the location wherethey left its adhesive and continue their pasting without stopping. Asit were, they start just the grooving again since the surplus adhesiveposes no problem thanks to the absence of a wall at the front.

In a particular embodiment, the device according to the inventioncomprises a fourth vertical wall.

This embodiment is particularly advantageous in the case of particularlyliquid adhesive which is more difficult to confine in a three-walldevice.

Advantageously, at least one of said vertical walls comprises teeth onthe upperedge.

The presence of an upper or lower edge provided with teeth makes itpossible to obtain a more flexible device where the walls can be turnedupside down, which walls can for example have a tooth size different atthe top and at the bottom in order to obtain for example differentgroovings which may be required for one type of covering or for another.

In a highly advantageous embodiment of the invention, the devicecomprises a U-shaped component comprising an upper opening and a lowersupport surface, said U-shaped component being provided in order to bedisposed on the lower edge of said second and third vertical walls ofsaid housing.

In a variant according to the invention, the second and third verticalwalls have, at least at the lower edge, a protuberance extendingdownwards folded upwards. This protuberance has a lower support surfaceand is provided in order to allow easier sliding of said housing oversaid floor during said adhesive spreading.

These support surfaces at the lower edge of the second and thirdvertical walls act as runners since, like wood, all steel, stainlesssteel and similar has a direction. This direction makes it possible todefine one surface smoother than another which will, during the pullingof the device according to the invention, allow the latter to slidedirectly on the floor in order to alleviate the strain on personsskilled in the art.

If so desired, the invention also makes provision that this supportsurface can be present on both the upper and lower edge.

Moreover, these support surfaces make it possible to avoid wear of theteeth since the latter do not rub against the floor. In the case of aU-shaped component, the latter is easily replaceable when it is worn outsince the lower edge is simply pushed inside.

Advantageously, the lower support surfaces of the second and third wallsare situated lower than said lower edges of the first wall and/or of thefourth wall, when the device is assembled.

This is because, when the device is used, if the edges of the second andthird vertical walls are in contact with the floor, the weight of theadhesive spreading device according to the invention is mainlydistributed on the aforementioned folds making it possible to reduce therubbing of the walls which do not have this protuberance. Moreover, thisdevice allows a pre-pasting, which is also referred to as application ofa first layer, of a thickness that will be exactly equal to thedifference in height between a lower part of the teeth of the fourthand/or of the first vertical wall and the folds of the second and thirdvertical walls.

Advantageously, the teeth of the lower or upper edge are teeth whichare, for example, either situated on at least one edge of aninterchangeable plate, which is provided in order to be fixed at thelower or upper edge, or both, of at least one of said vertical walls, orintegral with said edge of at least one of said vertical walls.

The interchangeable plates can have adjustable lengths for a betteradaptation on the vertical walls of adjustable length.

Moreover, it must be envisaged that advantageously the teeth have adifferent height and/or width and/or spacing with respect to oneanother.

In a particularly simple embodiment according to the invention, thefourth vertical wall comprises the handle on an external face.

In a particularly flexible and advantageous embodiment, two verticalwalls comprise an identical or different handle.

This makes it possible to quickly interchange the first and/or fourthvertical wall and the second and third vertical wall without dismantlingthe device since it is consequently sufficient to turn it by a quarterof a turn with respect to the direction of pulling of the deviceaccording to the invention.

Preferably, the handle is situated on the vertical wall at a positionsuch that, when the wall is turned upside down, the device according tothe invention can still be pulled adequately.

Advantageously, in which said handle is adjustable in length.

In one embodiment, the handle of the device for spreading adhesive forfloor coverings connects the upper edges of the second and thirdvertical walls.

Disposing the handle at this location has made it possible to obtain adevice of greater rigidity; this handle in effect acts as astrengthening bar, and is preferably adjustable, namely it can be drawnout or closed up at the same time as the vertical walls. The dispositionof the handle at this location also makes it possible to avoid the frontof the device according to the invention lifting up.

Advantageously, a second handle, adjustable in length, connects theupper edges of the second and third vertical walls. This adds to theadvantages mentioned just above and allows more flexibility duringpulling. According to requirements, the user can use the first situatedtowards the rear or the second situated for example towards the front.

The device according to the invention also comprises a bar, one end ofwhich has a shape provided to be associated with the handle of thehousing, in an articulated and removable manner. The bar serves as acontrol column for the device, allowing persons skilled in the art tonot always work kneeling. Advantageously, the bar is telescopic.

More specifically, the teeth have a height (h) and a width (w) in mm(h×w) chosen from amongst the following: 6×6, 8×8, 8×10, 10×12, 12×14,and a spacing by a distance (in mm) chosen from amongst the following:6, 8, 10, 12 and 14; or a diameter of 6, 8, 10, 12, 14 mm and a spacingby a distance (in mm) chosen from amongst the following: 6, 8, 10, 12and 14.

The shape of the teeth is advantageously chosen from amongst thefollowing shapes: half-moon, rectangle, semi-ellipse and other similarones.

Typically, the length of the vertical walls lies in the range 30 cm to80 cm, and preferably 40 cm to 72 cm.

In a particular embodiment, the device comprises a masking plateprovided to be affixed to the internal face of at least one verticalwall provided with teeth, the masking plate being provided to mask atleast one tooth. It is sometimes necessary to have teeth wider than whathas been provided according to the invention, consequently, it ispossible by means of this plate for example to mask alternate teeth, tomask all the teeth if a straight edge is desired and any otherconceivable possibility in the same range.

Advantageously, a panel is provided to be affixed to the internal faceof at least one vertical wall provided with teeth, the panel beingprovided to slide vertically so as to vary the height of the teeth. Itis sometimes required to affix a 2 cm-thick layer of adhesive, only thefirst centimetre of which must be grooved. With the device according tothe invention, this is possible, since the fourth and second verticalwalls can come down lower than the second and third vertical walls, andit is therefore sufficient to impose one centimetre of level differenceand position the panel in order to reduce the depth of the teeth to 1cm.

According to the invention, a counterweight is provided to be disposedin the region of the first vertical wall, preferably on the upper edgeof the first vertical wall. In the case of a very large user or a heavyand very thick adhesive, it can be advantageous to have a weight toaffix to said first wall in order to avoid unexpected lifting. Theweight is disposed straddling the wall by appropriate fixing means.

In particular, the device according to the invention consists of amaterial chosen from the group consisting of stainless steel, galvanisedsteel, rigid plastic, ceramic and mixtures thereof provided that thesematerials are sufficiently heavy to avoid the device according to theinvention lifting during pulling.

Other embodiments of the device according to the invention are given inthe accompanying claims.

Other details and special features of the invention will emerge from thedescription given hereinafter, on a non-limiting basis, making referenceto the accompanying drawings.

FIG. 1 illustrates a device for spreading adhesive for floor coveringsaccording to the present invention and its control by a user.

FIG. 2 is an overhead view of a device according to the inventionshowing the layer of adhesive deposited by the pulling of said device.

FIG. 3 is a perspective view of a simple embodiment of the deviceaccording to the invention.

FIG. 4 a is a front view of an embodiment of the device according to theinvention comprising a panel making it possible to adjust the height ofthe teeth. FIG. 4 b is a front view of an embodiment of the deviceaccording to the invention in which the teeth are placed on aninterchangeable plate which is adjustable in height.

FIG. 5 is a perspective view of an embodiment of the device according tothe invention illustrating the support surfaces of the vertical walls.

FIG. 6 illustrates an embodiment of a bar provided for pulling thedevice according to the invention.

FIGS. 7 a to 7 d are front views of an embodiment of the toothed edgeand a panel provided to mask or not mask at least one tooth of the loweredge of the housing of the device of the invention.

FIG. 8 is a front view of an embodiment, in which the housing has anadjustable width.

FIG. 9 is a side view of an embodiment of the device which comprisescastors.

FIG. 10 is a perspective view of the most preferential embodiment of thedevice according to the invention.

FIG. 11 is also a perspective view of the most preferential embodimentof the device according to the invention in which the counterweight canbe seen.

As illustrated in FIGS. 1 and 2, the adhesive spreading device 1 of theinvention comprises a housing 2 which, in a preferred embodiment, isrectangular and open on its lower face and on its upper face. Itsdimensions are variable according to the dimensions of the rooms inwhich a floor covering has to be pasted. The width of the housing 2 isgenerally between 30 cm and 80 cm and preferably between 40 cm and 72cm.

The user fills the housing 2 with adhesive (in general, the amount ofadhesive poured into the housing is approximately 25 kg), and thendisposes the bar 3 on the handle 4 of the housing 2, as illustrated inFIG. 2. The bar 3 is provided with a lever 7 in order to be held in thehand by the user and with an end 8 opposite to the lever 7, the shape ofwhich allows removable fitting onto the handle 4 of the housing 2.Moreover, the bar 3 can be inclined according to a variable angle, andthis bar 3 is, preferably, telescopic in order to be adaptable to theheight of the user.

FIG. 3 illustrates an adhesive spreading device 1 whose housing 2comprises a first 2 b and a fourth 2 a vertical wall, and a second 2 cand a third 2 d vertical wall. In this simple embodiment, the firstvertical wall 2 b has a toothed lower edge 5 and the fourth verticalwall 2 a has a handle 4 on its external face.

Persons skilled in the art will understand that all the vertical walls 2a, 2 b or 2 c, 2 d can comprise an upper and/or lower edge provided withteeth 5.

As can be seen in FIG. 4 a, the teeth 5 are either integral with thelower edge of a vertical wall 2 a, 2 b, 2 c, 2 d of the housing 2, ordisposed on a plate 13 (see FIG. 4 b) that is affixed, with adjustablefixing means, such as for example wing bolts 11, or by a clampingsystem, against the vertical wall 2 a, 2 b, 2 c, 2 d of the housing 2 sothat the teeth 5 disposed on the plate 13 are exposed at the floor witha height adapted to the thickness of adhesive 6 that the user wishes tospread on the floor.

Moreover, the teeth can have various dimensions chosen from amongst thefollowing: 6 mm×6 mm, 8 mm×8 mm, 8 mm×10 mm, 10 mm×12 mm or 12 mm×14 mmin the case of quadrangular teeth. They have a diameter of 6, 8, 10, 12,14 in the case of semicircular, semi-elliptical, etc. teeth. They canalso be spaced differently from one another, from a panel or from oneedge to the other.

The height of the teeth can be set either (FIG. 4 a) by means of a panel14 which is disposed inside the housing 2 against the toothed verticalwall, said panel being fixed with eyelets so as to be able to slide upand down and thus vary the height of the teeth 5, or (FIG. 4 b) byraising the plate 13 which comprises the teeth 5, and consequently theheight of the teeth 5 will be set by the vertical wall on which theplate 13 is fixed. It must obviously be understood that the panel 14 canalso be disposed on the internal face of the plate 13 in order to adjustthe height of the teeth 5.

Another embodiment of the adhesive spreading device of the inventionmakes provision that each housing 2 has fixed tooth dimensions and theuser therefore chooses the housing 2 as a function thereof.

As mentioned previously, a supplementary embodiment makes provision thatthe housing 2 is provided with teeth 5 on the lower edge and on theupper edge of the vertical wall 2 b opposite the vertical wall 2 aprovided with a handle 4.

Preferably, the teeth on the lower edge have dimensions different fromthose of the teeth on the upper edge. Thus, the user has only to turnthe housing 2 upside down when he wishes to use one of the two types ofteeth.

FIG. 5 illustrates an embodiment which is particularly preferential inparticular for the application of a first layer.

The vertical lateral walls 2 c, 2 d have a lower edge 15 comprising aprotuberance 16 extending downwards folded upwards provided to alloweasier sliding of said housing over said floor during said adhesivespreading. This fold 16 at the bottom 15 of the vertical wall 2 c, 2 dacts as a runner since, like wood, all steel, stainless steel andsimilar has a direction. This direction makes it possible to define onesurface smoother than another which will, during pulling of the deviceaccording to the invention, allow the latter to slide directly on thefloor in order to alleviate the strain on persons skilled in the art.

Advantageously, the vertical walls 2 c, 2 d have a height greater thanthat of the vertical walls 2 a, 2 b, and they therefore come down lowerthan the vertical walls 2 a, 2 b. The weight of the adhesive spreadingdevice according to the invention is mainly distributed over theabovementioned folds 16 making it possible to reduce the rubbing of thewalls 2 a, 2 b which do not have this protuberance 15. Moreover, thisdevice allows a pre-pasting that is also referred to as application of afirst layer of a thickness which will be relatively equal to thedifference in height between a lower part of the teeth 5 of the verticalwall 2 a, 2 b and the support surface 18 of the fold 16 of the verticalwall 2 c, 2 d.

FIG. 6 illustrates the bar 3, provided with the lever 7 in order to beheld in the hand by the user and with an end 8 opposite to the lever 7,the shape of which allows a removable association on the handle 4 of thehousing 2. Moreover, the bar 3 can be inclined according to a variableangle, and this bar 3 is, preferably, telescopic in order to beadaptable to the height of the user.

Advantageously, the vertical wall 2 c, 2 d comprises a handle 4identical to or different from the handle 4 disposed on said verticalwall 2 a, 2 b. This makes it possible to quickly interchange the fourth2 a and the first 2 b and the second 2 c and the third 2 d vertical wallwithout dismantling the device 1 since it is consequently sufficient toturn it by a quarter of a turn with respect to the direction of pullingof the device 1 according to the invention.

The adhesive spreading device 1 according to the invention makesprovision that the housing 2 is, preferably, made from stainless steel//(15/10, 18/10), so as to be sturdy, washable and sufficiently heavy soas to not lift up when the user pulls it in order to spread theadhesive.

Other materials can be used such as galvanised steel, ceramic or a rigidplastic.

The adhesive spreading device 1 of the invention is mainly used withinthe context of laying tiling on the floor but other floor coveringsrequire the use of adhesive, such as carpet, linoleum, cork or pastedwooden floors.

FIGS. 7 a to 7 d illustrate the possibility of disposing a masking plate9 which makes it possible to determine six different laying widthsaccording to the size of the tiles that have to be pasted. Thus anadhesive spreading device 1 of the invention can have dimensions rangingfrom 30 cm to 80 cm and preferably from 40 cm to 72 cm, this comprisingall possible intermediate sizes.

FIG. 8 illustrates a method of setting the width of the housing 2 bymeans of a wing bolt 11 that slides in a channel 10 so as to narrow orwiden the toothed edge.

The adhesive spreading device 1 of the invention can be provided withcastors 12, as illustrated in FIG. 9, to facilitate pulling.

Where the user wishes to paste tiles with large dimensions (at least 40cm×40 cm), it is not necessary to also paste the lower face of the tilebefore putting it down on the layer of adhesive spread on the floor bymeans of the adhesive spreading device 1 of the invention.

The adhesive spreading device 1 of the present invention therefore makesit possible to eliminate the pasting of large tiling tiles whilstobtaining as effective an adhesion thereof on the floor.

FIG. 10 illustrates the preferential embodiment of the device accordingto the invention. In this embodiment, the housing 2 comprises threevertical walls 2 b, 2 c, 2 d. The first wall is adjustable in length bymeans of a groove 10 in which there slides a fixing means, for example awing bolt or any other fixing means, such as a clip or some other means.

The teeth 5 are situated on an interchangeable plate 13 of adjustablelength. The interchangeable plate is fixed to the first wall 2 b bymutual embedding means 19 and 19′.

The device comprises a U-shaped component 15 comprising an upper openingand a lower support surface 18. The lower edges of the second 2 c andthird 2 d vertical walls of the housing 2 are slid into the U-shapedcomponent 15 through the upper opening thereof.

This is equivalent to equipping the housing 2 with runners 15 in orderto delay the wear of the teeth 5 and facilitate the sliding of thedevice according to the invention since the support surface 18 rests onthe floor and, as for the teeth 5, these are not in contact with thefloor.

The handle 4 connects the upper edges of the second 2 c and third 2 dvertical walls. The handle is adjustable in length.

A second handle 4′, also adjustable in length, connects the upper edgesof the second 2 c and third 2 d vertical walls.

Disposing the handle at this location has made it possible to obtain adevice of greater rigidity; this handle in effect acts as astrengthening bar, it is preferably adjustable, and can be drawn out orclosed up at the same time as the vertical walls.

According to requirements, the user can use the first situated towardsthe rear or the second situated for example towards the front and affixthereto the telescopic bar assisting pulling such as that depicted inFIG. 6.

FIG. 11 shows the counterweight 17 that is provided in order to bedisposed in the region of the first vertical wall 2 b, preferably on theupper edge of the first vertical wall 2 b.

In the case of a very large user or a heavy and very thick adhesive, itcan be advantageous to have a weight to be affixed to said first wall inorder to avoid unexpected lifting. The weight is disposed straddling thewall by appropriate fixing means.

It must be understood that the present invention is in no way limited tothe embodiments described above and that many modifications can be madethereto without departing from the scope of the accompanying claims.

1. Device (1) for spreading adhesive for floor coverings, comprising aquadrangular housing (2) open at least on its lower face, said housing(2) comprising at least a first (2 b), a second (2 c) and a third (2 d)vertical wall, said second (2 c) and third (2 d) vertical walls beingopposite one another and each of said vertical walls comprising a loweredge and an upper edge, said housing (2) comprising at least one handle(4) and at least said first vertical wall comprising teeth (5) on thelower edge, wherein said vertical walls (2 b, 2 c, 2 d) have anadjustable length provided in order to be adapted to a tile dimension.2. Device (1) for spreading adhesive for floor coverings according toclaim 1, also comprising a fourth vertical wall (2 a).
 3. Device (1) forspreading adhesive for floor coverings according to claim 1, wherein atleast one of said vertical walls comprises teeth on the upper edge. 4.Device (1) for spreading adhesive for floor coverings according to claim1, also comprising a U-shaped component (15) comprising an upper openingand a lower support surface (18), said U-shaped component being providedin order to be disposed on the lower edge of said second and thirdvertical walls of said housing.
 5. Device (1) for spreading adhesive forfloor coverings according to claim 1, wherein said second (2 c) andthird (2 d) vertical walls have, at least at the lower edge, aprotuberance (15) extending downwards folded upwards, said protuberancehaving a lower support surface (18).
 6. Device (1) for spreadingadhesive for floor coverings according to claim 1, wherein said lowersupport surfaces (18) of said second (2 c) and third (2 d) walls aresituated at least lower than said lower edge of said first wall (2 b)and/or of the fourth wall (2 a), when the device is assembled.
 7. Device(1) for spreading adhesive for floor coverings according to claim 1,wherein said teeth (5) are situated on at least one edge of aninterchangeable plate (13), which is provided in order to be fixed atthe edge of at least one of said vertical walls.
 8. Device (1) forspreading adhesive for floor coverings according to claim 1, whereinsaid interchangeable plates (13) have an adjustable length.
 9. Device(1) for spreading adhesive for floor coverings according to claim 1,wherein said teeth (5) are integral with said edge of at least one ofsaid vertical walls.
 10. Device (1) for spreading adhesive for floorcoverings according to claim 1, wherein said teeth (5) have a heightand/or a width and/or a spacing which are different from one edge to theother and/or from one interchangeable plate (13) to another.
 11. Device(1) for spreading adhesive for floor coverings according to claim 1,wherein at least said fourth (2 a) vertical wall comprises said handle(4) on an external face.
 12. Device (1) for spreading adhesive for floorcoverings according to claim 1, wherein at least two vertical wallscomprise an identical or different handle (4) on the external face. 13.Device (1) for spreading adhesive for floor coverings according to claim1, wherein said handle is adjustable in length.
 14. Device (1) forspreading adhesive for floor coverings according to claim 1, whereinsaid handle (4) connects the upper edges of the second (2 c) and third(2 d) vertical walls.
 15. Device (1) for spreading adhesive for floorcoverings according to claim 1, wherein a second handle, adjustable inlength, connects the upper edges of the second (2 c) and third (2 d)vertical walls.
 16. Device (1) for spreading adhesive for floorcoverings according to claim 1, also comprising a bar (3), one end (8)of which has a shape provided to be associated with the handle (4) ofthe housing (2), in an articulated and removable manner.
 17. Device (1)for spreading adhesive for floor coverings according to claim 16,wherein the bar (3) is telescopic.
 18. Device (1) for spreading adhesivefor floor coverings according to claim 1, wherein the teeth (5) have aheight (h) and a width (w) in mm (h×w) chosen from amongst thefollowing: 6×6, 8×8, 8×10, 10×12, 12×14.
 19. Device (1) for spreadingadhesive for floor coverings according to claim 1, wherein the teeth (5)have a spacing by a distance (in mm) chosen from amongst the following:6, 8, 10, 12 and
 14. 20. Device (1) for spreading adhesive for floorcoverings according to claim 1, wherein the length of said verticalwalls lies in the range 30 cm to 80 cm, and preferably 40 cm to 72 cm.21. Device (1) for spreading adhesive for floor coverings according toclaim 1, wherein the housing (2) is also provided with a masking plate(9) provided to be affixed to the internal face of at least one of saidvertical walls at the level of the teeth (5), the masking plate (9)being provided to mask at least one of said teeth (5).
 22. Device (1)for spreading adhesive for floor coverings according to claim 1, whereina panel (14) is provided to be affixed to the internal face of at leastone of said vertical walls provided with teeth (5), the panel (14) beingprovided to slide vertically so as to vary the height of the teeth (5).23. Device (1) for spreading adhesive for floor coverings according toclaim 1, wherein a counterweight (17) is provided to be disposed in theregion of the first vertical wall (2 b), in particular on the upper edgeof said first vertical wall (2 b).
 24. Device (1) for spreading adhesivefor floor coverings according to claim 1, being manufactured from amaterial chosen from the group consisting of stainless steel, galvanisedsteel, rigid plastic, ceramic and mixtures thereof.